Improvement in steamrgenerators



N. PETERS, PNOTO-LXTNOGRAPHER, WASHINGTON D C Mimi Starte strut @Mite Letters Patent No. 100,041, dated Februa/ry 22, 1870.

IMPROVEMENT IN STEAMfG-ENERATORS.

The Schedule referred to in these Letters Patent and making part of the same,

To all whom it may concern:

Be it known that I, JAMES J lT COBS, of Maysville, in the county1 of Mason, and State of Kentucky, have invented a new and useful Improvement in Steam- Boilers; and I do hereby declare that the following is at'ull, clear, and exact description thereof, which will enable others skilled in the art to make and use the saine, reference being had to the accompanying drawing forming part of this specification.

The object of my invention-is to provide an improved construction in that class of steamigenerators which is provided with a series of pans for containing water, and the invention consists in the provision of a pocket or receptacle for the water on its introduction to the generator.

In the accompanying drawing- Figure 1 represents a longitudinal vertical section of a steam-boiler and drum lprovided with combined vaporising and sediment-paus according to my invention, the section being through the fine a: x, fig. 2.

Figure 2 is a vertical cross-sectionof tig. l through the line y y.

Figure 3 represents the forward ends of the-cluster of pans of the boiler, (or in the drum) showing the pocket in the top pan into which the water is first introduced.

Similar letters of referenceiudicate corresponding parts.

A represents lthe boiler, which may ne a plain cylinder, or be' provided with tubes, or with -return ues B B, as seen in the drawing. l

C represents a drumcmmected ywith the boiler by the connection tubes D D'. l y

Supported on the return dues B B of the boiler are a seriesV of shallow pans, two or more in number, one placed above the other as represented in the drawing, increasing in width from the upper to the lower one, so that the water will descend from the top e into the one-next below, and from that onev to the next, and so on through the series.` v

In this example of my invention I represent, three pans placed as above mentioned, with a pocket, E, connected with the'upper pau into which the water is first introduced through an aperture, F, in the top of the boiler.

G, H, and I represent the pans; these are made shallow so as to contain but thin sheets of water.

The water Hows fromthe pocket E and fills the upper pan, and from the upper pau into the next, and

from the lower pan into the'boiler beneath the fines In flowing down through the series of pans the sediment or foreign matter contained or held previously in suspension in the water is deposited in the pans, so that when it descends into the lower portion of the boiler it is quite pure and no incrustation on the surface ofthe boiler occurs. y

Water is introduced through the orifice Fin the top ofthe drum, aud descends into the pocket E of the upper pan; it passes through the series and descends through the connections D D'iuto the `pans of the boiler, thus increasing the means mentioned for purifying the water, the pocket E serving to retain the 

